Guantanamo is actually sign of USA becoming more civilised. Less than 50 years ago US military armed formations partied harder http://en.wikipedia.org/wiki/Phoenix_Program More akin to their North Korean counterparts. Then again NK is developmentally delayed by about 50 years... Maybe around 2063 they will have their Guantanamo an will be abhorred by it.

On more serious note... When could we deploy few hundred thousands microdrones there and assasinate everyone who gives the orders?